Data Sheet
Scotch
™
2242
Linerless Electrical Rubber Tape
Product Description
Scotch™ 2242 Electrical Tape is an
economical, general purpose, rubber
tape. The tape is a highly
conformable, linerless EPR (Ethylene
Propylene Rubber) based electrical
insulating tape. The tape is designed
for use in splicing and terminating
wires and cables rated up to 90°C.
The tape will meet industry
specifications for flame retardance
and has the necessary physical and
electrical properties to provide
immediate moisture seals and
void–free buildup.
Tape Features:
•Linerless,
self–bonding, insulating
tape
•Ethylene
propylene base
•Flame
retardant
•Physical
and electrical properties
unaffected by degree of stretch
•Uniform
tape unwind from roll
•Small
roll size (OD)
•Five
year shelf life
•Stable
over wide application
temperature range
•Weather
Resistant
Applications
•Primary
insulation for cable splices
and terminations
•Moisture–sealing
and insulating
electrical connections
•Bus
bar insulation
•Moisture–sealing
of cable ends
•Motor
leads
•Wire
and cable jacket repair
Heat Resistance
ASTM D–4388
UV Resistance
ASTM D–4388
Flame Resistance
IEEE Std 27–1974 ANSI
C37.20C 74
Electrical Properties
Dielectric Strength
ASTM D–4325
Original
ASTM D–4325
24 hrs in H
2
O
ASTM D–4325
96 hrs @ 23°C
96% RH
Volume Resistivity
ASTM D–4325
Original
Aged 96 hrs
@ 23°C 96% RH
Passes
Passes
Passes
750 V/mil
(29.5 KV/mm)
750 V/mil
(29.5 KV/mm)
730 V/mil
(28.7 KV/mm)
Data: Physical and
Electrical Properties
Physical Properties
Color
Thickness
ASTM D–4325
Tensile Strength
ASTM D–4325
Ultimate Elongation
ASTM D–4325
Operating Temperature
ASTM D–4388
Emergency Overload
ASTM D–4388
Thermal Resistivity
3M Transient
Ozone Resistance
ASTM D–4388
Black
30 mils
(0.762 mm)
250 psi
(1.72 MPa)
1000 %
90°C
(194°F)
130°C
(266°F)
300°C
cm/watt
Passes
>10
15
ohm–cm
>10
14
ohm–cm
Dielctric Constant
ASTM D–4325
1200 V @ 60 Hz 23°C
Dissipation Factor
ASTM D–4325
1200 V @ 60 Hz 23°C
3.5
0.70%
*This data is not to be used for
specifications. Values listed are for
typical properties and should not be
considered minimum or maximum.
Specifications
Product
The high–voltage corona resistant
tape must be supplied without a liner
and based on ethylene propylene
rubber and be capable of emergency
operating cable temperature of 130°C.
The tape must be capable of being
applied in either stretched or
unstretched conditions without
resulting in loss in either physical or
electrical properties. The tape must
not split, crack, slip or flag when
exposed to various environments
(indoors or outdoor). The tape must
be compatible with all synthetic cable
insulations and have a shelf life of
five years. The tape must be flame
retardant.
Engineering/Architectural
Splicing and terminating solid
dielectric cables shall be done in
accordance with drawings engineered
by the splice material manufacturer
such as the 2047 Series available from
the 3M company.
Installation Techniques
Scotch™ 2242 Electrical Tape should
be applied in successive half–lapped
level wound layers until desired
buildup is reached.
This tape should be applied like any
rubber tape: that is, the side of the
tape wrapped inside the roll should be
applied ouside on the splice. (Tacky
side up.) This will help prevent the
roll from getting progressively further
away from the work area.
To eliminate voids in critical areas,
highly elongate 2242 Tape. Stretch
tape in these critical areas just short of
the breaking point; doing so will not
alter its physical or electrical
properties. In less critical areas, less
elongation may be used. Normally
2242 Tape is stretched 3/4 of its
original width in these critical areas.
Always attempt to half–lap to produce
a uniform buildup.
Shelf Life
Scotch™ 2242 Electrical Tape has a
5–year shelf life (from date of
manufacture) when stored under the
following recommended storage
conditions. Store behind present
stock in a clean dry place at a
temperature of 70°F and 40 to 50%
relative humidity. Good stock
rotation is also recommended.
Availability
Scotch™ 2242 Electrical Tape is
available in 3/4 in. by 15 ft, and 1–1/2
in. by 15 ft rolls from your electrical
distributor.
IMPORTANT NOTICE TO PURCHASER:
All statements, technical information and
recommendations related to the Seller’s
products are based on information believed
to be reliable, but the accuracy or
completeness thereof is is not guaranteed.
Before utilizing the product, the user should
determine the suitability of the product for its
intended use. The user assumes all risks and
liability whatsoever in connection with such
use.
80–6104–3993–9
All statements or recommendations of the
seller which are not contained in the Seller’s
current publications shall have no force or
effect unless contained in an agreement
signed by an authorized officer of the Seller.
The statements contained herein are made in
lieu of all warranties express or implied,
including but not limited to the implied
warranties of merchantability and fitness for a
particular purpose which warranties are
hereby expressly disclaimed.
(c)1991 3M
SELLER SHALL NOT BE LIABLE TO THE
USER OR ANY OTHER PERSON UNDER
ANY LEGAL THEORY, INCLUDING BUT NOT
LIMITED TO NEGLIGENCE OR STRICT
LIABILITY, FOR ANY INJURY OR FOR ANY
DIRECT OR CONSEQUENTIAL DAMAGES
SUSTAINED OR INCURRED BY REASON
OF THE USE OF ANY OF THE SELLER’S
PRODUCTS.
Litho in U.S.A
3M Electrical Products Division
6801 River Place Blvd.
Austin, TX 78726–9000
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